Camera module

Abstract

An embodiment of the present invention provides a camera module comprising: a fixed part; a moving part which moves relative to the fixed part in an optical axis direction; a first driving part which moves the moving part at a first maximum speed; and a second driving part which moves the moving part at a second maximum speed, wherein the first driving part and the second driving part move the moving part in a direction perpendicular to the optical axis direction, and the second maximum speed is greater than the first maximum speed.

1 . A camera module comprising:
 a fixed part;   a moving part which moves relative to the fixed part in an optical axis direction;   a first driving part which moves the moving part at a first maximum speed; and   a second driving part which moves the moving part at a second maximum speed,   wherein the first driving part and the second driving part move the moving part in a direction perpendicular to the optical axis direction, and   the second maximum speed is higher than the first maximum speed.   
     
     
         2 . The camera module of  claim 1 , wherein:
 the fixed part includes at least one of a housing and a base; and   the moving part includes at least one of a lens part and an image sensor.   
     
     
         3 . The camera module of  claim 2 , wherein:
 the lens part is disposed in the housing;   the lens part includes a lens holder and a lens assembly disposed in the lens holder; and   the image sensor is disposed in the base.   
     
     
         4 . The camera module of  claim 1 , wherein the first driving part moves the moving part to correspond to a shaking angle. 
     
     
         5 . The camera module of  claim 4 , wherein the second driving part moves the moving part to compensate for a difference between the shaking angle and a moving angle caused by the first driving part. 
     
     
         6 . The camera module of  claim 5 , wherein the second driving part moves the moving part to correspond to an error between the first driving part and the shaking angle at a different time after the first driving part moves the moving part at the moving angle. 
     
     
         7 . The camera module of  claim 3 , wherein the first driving part and the second driving part are selectively controlled according to a focal length between the lens assembly and the image sensor. 
     
     
         8 . The camera module of  claim 7 , wherein, when the focal length is greater than a first threshold, the moving part is moved by the first driving part and the second driving part. 
     
     
         9 . The camera module of  claim 8 , wherein:
 when the focal length is smaller than the first threshold and greater than a second threshold, the moving part is moved by the first driving part; and   the first threshold is greater than the second threshold.   
     
     
         10 . The camera module of  claim 9 , wherein, when the focal length is smaller than the second threshold, the moving part is moved by the second driving part.